The present invention discloses a safety convenient switch, including a rectifying circuit, a light sense relay circuit and an electric lamp, wherein the rectifying circuit including a rectifier, a capacitance, two triodes and three current-limiting resistances; the light sense relay circuit including a photosensitive diode, a LED, a current-limiting resistance, a key and a power supply. The invention can implement that turning on the lamp while opening a door, which save energy source and is safe.

Title
Security convenient switch
Application Number
200710044937
Publication Number
101369809
Application Date
August 16, 2007
Publication Date
February 18, 2009
Inventor
Zhou Yingya
Gao Jun
Agent
song hu
Assignee
Qibao Middle School Of Shanghai
IPC
H05B 37/02
H01H 03/46
H03K 17/795